Thursday 11 May 2023

How to Solder/ Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit?

 Yanhua JLR KVM Soldering Toolkit is specially designed for customers to solder and desolder 2018+ Jaguar Land Rover KVM (RFA module) MCU processor chips easier and faster. There are two kinds of toolkits available at obdexpress.co.uk. The main difference is the full package has DES hot air gun and Hot air gun bracket. You can choose any one according to your own need.

Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Yanhua JLR KVM Soldering Toolkit Comparison Table:


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


As the JLR KVM Soldering Toolkit Full Package has more tools, the price is more expensive. It's 333 euro with 15 items, and another package is 210 euro with 13 items.

How to use Yanhua JLR KVM Soldering Toolkit to desolder/solder 2018+ JLR KVM?

Toolkits used: Yanhua JLR KVM Soldering Toolkit Full Package

1.Remove 2018+ JLR KVM chip

Apply Yanhua paint remover to the top of the chip and the pins

After 30 seconds, you will see the protective paint start to peel off

Apply the paint remover to the pin area

After about 90s, you can start cleaning the chip with cotton.


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Then clean the board with the Contact cleaner to avoid corrosion of the board by paint remover

This is the effect after paint removal and cleaning.


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Install the KVM chip limit board

Apply Solder paste to the chip pins

Use the temperature and the airflow adjustable Hot air gun to desolder chip

Use PCB board clip to secure the chip limit plate

Use the Air gun height limit board to adjust the of height of the hot air gun, 8m above the chip limit board


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Adjust the air volume to 8 gear

Adjust the preheating temperature to 250℃

Start the Hot air gun, keep the temperature at 250℃, preheat for 90 seconds

After 90 seconds, raise the temperature to 420℃, and heat for 25 seconds


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


At this point, use Tweezers to hold one corner of the chip. When the chip is loose, and clip up the chip.

About 25 seconds, the chip is close, remove the Air gun and clip up the chip.

Clean the bottom and pins of the chip with Yanhua paint remover

Then clean the board with the Contact cleaner to avoid corrosion of the board by paint remover

There is the original plate solder on the pad, please check whether there is short circuit between the board.


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Video guide:

https://youtu.be/AjZyT21saWg

2.Solder 2018+ JLR KVM chip

Apply the Solder paste to the chip pad

Install the KVM chip limit board


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Use Clamp to secure the chip limit plate

Use Yanhua proprietary chips, Yanhua has added solder for the chip pin before delivery

Gently place the chip into the Chip limit plate

Please note the chip pin direction

The dimple on the chip is pin1


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Apply Solder paste to the chip pins and the top of the chip

Check that the chips are placed correctly

Use the temperature and the air volume adjustable Hot air gun to below and solder chip

Use the Air gun height limit board to adjust the of height of the hot air gun, 8m above the chip limit plate


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Adjust the air volume to 8 gear

Adjust the preheating temperature to 250℃°

Start the hot air gun, keep the temperature at 250℃, preheat for 90 seconds

After 90 seconds, raise the temperature to 340℃, and heat for 25 seconds


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


About 25 seconds, please shut down and remove the air gun

Use the Contact cleaner to clean the solder paste on the chip

This is final result after welding and cleaning.


Solder or Desolder 2018+ JLR KVM with Yanhua JLR KVM Soldering Toolkit


Video guide:

https://youtu.be/5_QH4CojmTQ

Yanhua JLR KVM Soldering Assisted Package without DES hot air gun and bracket (€210 + free shipping):

https://www.obdexpress.co.uk/wholesale/yanhua-jlr-kvm-soldering-assisted-package.html

Yanhua JLR KVM Soldering Toolkit Full Package with DES hot air gun and bracket (€333 + free shipping):

https://www.obdexpress.co.uk/wholesale/yanhua-jlr-kvm-soldering-toolkit-full-package.html

www.obdexpress.co.uk


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